Add 1.4.0 and 1.5.0 to previous versions (pytorch#439)

Author: malfet

_get_started/previous-versions.md

@@ -17,6 +17,102 @@ your convenience.
 
 ## Commands for Versions >= 1.0.0
 
+### v1.5.0
+
+#### Conda
+
+##### OSX
+
+```
+# conda
+conda install pytorch==1.5.0 torchvision==0.6.0 -c pytorch
+```
+
+#####  Linux and Windows
+
+```
+# CUDA 9.2
+conda install pytorch==1.5.0 torchvision==0.6.0 cudatoolkit=9.2 -c pytorch
+
+# CUDA 10.1
+conda install pytorch==1.5.0 torchvision==0.6.0 cudatoolkit=10.1 -c pytorch
+
+# CUDA 10.2
+conda install pytorch==1.5.0 torchvision==0.6.0 cudatoolkit=10.2 -c pytorch
+
+# CPU Only
+conda install pytorch==1.5.0 torchvision==0.6.0 cpuonly -c pytorch
+```
+
+#### Wheel
+
+##### OSX
+
+```
+pip install torch==1.5.0 torchvision==0.6.0
+```
+
+##### Linux and Windows
+
+```
+# CUDA 10.2
+pip install torch==1.5.0 torchvision==0.6.0 -f https://download.pytorch.org/whl/torch_stable.html
+
+# CUDA 10.1
+pip install torch==1.5.0+cu101 torchvision==0.6.0+cu101 -f https://download.pytorch.org/whl/torch_stable.html
+
+# CUDA 9.2
+pip install torch==1.5.0+cu92 torchvision==0.6.0+cu92 -f https://download.pytorch.org/whl/torch_stable.html
+
+# CPU only
+pip install torch==1.5.0+cpu torchvision==0.6.0+cpu -f https://download.pytorch.org/whl/torch_stable.html
+```
+
+### v1.4.0
+
+#### Conda
+
+##### OSX
+
+```
+# conda
+conda install pytorch==1.4.0 torchvision==0.5.0 -c pytorch
+```
+
+#####  Linux and Windows
+
+```
+# CUDA 9.2
+conda install pytorch==1.4.0 torchvision==0.5.0 cudatoolkit=9.2 -c pytorch
+
+# CUDA 10.1
+conda install pytorch==1.4.0 torchvision==0.5.0 cudatoolkit=10.1 -c pytorch
+
+# CPU Only
+conda install pytorch==1.4.0 torchvision==0.5.0 cpuonly -c pytorch
+```
+
+#### Wheel
+
+##### OSX
+
+```
+pip install torch==1.4.0 torchvision==0.5.0
+```
+
+##### Linux and Windows
+
+```
+# CUDA 10.1
+pip install torch==1.4.0 torchvision==0.5.0 -f https://download.pytorch.org/whl/torch_stable.html
+
+# CUDA 9.2
+pip install torch==1.4.0+cu92 torchvision==0.5.0+cu92 -f https://download.pytorch.org/whl/torch_stable.html
+
+# CPU only
+pip install torch==1.4.0+cpu torchvision==0.5.0+cpu -f https://download.pytorch.org/whl/torch_stable.html
+```
+
 ### v1.2.0
 
 #### Conda
@@ -53,7 +149,7 @@ pip install torch==1.2.0 torchvision==0.4.0
 
 ```
 # CUDA 10.0
-pip install torch===1.2.0 torchvision===0.4.0 -f https://download.pytorch.org/whl/torch_stable.html
+pip install torch==1.2.0 torchvision==0.4.0 -f https://download.pytorch.org/whl/torch_stable.html
 
 # CUDA 9.2
 pip install torch==1.2.0+cu92 torchvision==0.4.0+cu92 -f https://download.pytorch.org/whl/torch_stable.html